Didn't see a thread for this, so I decided to start one. Let's see the nastiest roads you've been on with your bike. Here's a fairly tame pic of mine, where two rutted hard clay roads meet... would be worse if it was wet, of course.

Yes, I rode through this, though I'll admit I ended up walking my bike about ten feet through the notch on the right side of the opposite bank. The rest of that bank was pretty steep. And yes, that is a road. It's here: 40°11'48.38"N 91°59'11.45"W